# 4: Fractions

- Page ID
- 9848

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- 4.2: What is a Fraction?
- One of the things that makes fractions such a difficult concept to teach and to learn is that you have to think about them in a lot of different ways, depending on the problem at hand. For now, we are going to think of a fraction as the answer to a division problem.

- 4.12: Egyptian Fractions
- An Egyptian fraction is a finite sum of distinct unit fractions.

The “Pies Per Child__ ^{[1]}__” approach to fractions used in this part comes from James Tanton, and is used with his permission. See his development of these and other ideas at

__http://gdaymath.com/__.

- Pie image by Claus Ableiter (Own work) [GFDL, CC-BY-SA-3.0 or CC BY-SA 2.5-2.0-1.0], via Wikimedia Commons
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